{"product_id":"hang-x-hx-37-37cc-2-stroke-petrol-engine","title":"HANG-X HX-37 37cc 2-Stroke Petrol Engine","description":"\u003cp\u003eThe HANG X HX-37 37cc 2-Stroke Petrol Engine is a compact, lightweight and high-performance engine designed for model aircraft and other suitable applications where a strong power-to-weight ratio is important.\u003c\/p\u003e\n\u003cp\u003eWith a 37cc single-cylinder, two-stroke design, the HX-37 produces up to 5 HP (3.73 kW) at 9,500 rpm. Its air-cooled construction, carburettor control and straightforward 2-stroke lubrication system make it a practical choice for pilots looking for dependable petrol power in a lightweight package.\u003c\/p\u003e\n\u003cp\u003eThe HX-37 weighs just 1,165 g for the main engine, while the manufacturer recommends propeller sizes of 19×10, 20×8 and 20×10. The engine uses a 45:1 (2T, FD) oil-to-fuel ratio and has a stated static thrust of 10 kg at 0 m altitude.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e37cc single-cylinder 2-stroke petrol engine\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUp to 5 HP (3.73 kW) at 9,500 rpm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight 1,165 g main-engine weight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAir-cooled design\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCarburettor-controlled fuel system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e9.3:1 compression ratio\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e6V–14.4V ignition voltage\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1,400 rpm idle speed\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e45:1 (2T, FD) oil ratio\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRecommended propellers: 19×10, 20×8 and 20×10\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10 kg stated static thrust at 0 m altitude\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePerfect For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge-scale RC model aircraft\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePetrol-powered model aircraft projects\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePilots looking for a lightweight 37cc powerplant\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAircraft builds where power-to-weight ratio is important\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eModel aircraft requiring a compact single-cylinder 2-stroke engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Summary\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe HX-37 combines 37cc of displacement with a 5 HP output while keeping the main engine weight to approximately 1.165 kg. Its 2-stroke, air-cooled configuration provides a compact petrol power solution for suitable RC aircraft applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: HANG X\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eModel: HX-37\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEngine Type: 2-Stroke Petrol\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDisplacement: 37cc\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCylinder: Single Cylinder\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl: Carburettor\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCooling: Air Cooled\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBore × Stroke: 38mm × 33mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 9.3:1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIgnition Voltage: 6V–14.4V\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIdle Speed: 1,400 rpm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaximum Performance: 5 HP \/ 3.73 kW at 9,500 rpm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStatic Thrust: 10 kg at 0 m altitude\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOil Ratio: 45:1 (2T, FD)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMain Engine Weight: 1,165 g\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRecommended Propellers: 19×10, 20×8, 20×10\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Buy From Probuild Aircraft\u003c\/strong\u003e\u003cbr\u003e✅ Official UK stockist\u003cbr\u003e✅ 100% genuine HANG-X products\u003cbr\u003e✅ Trusted by top international pilots\u003cbr\u003e✅ Fast UK shipping\u003cbr\u003e✅ Trusted by RC pilots since 1993\u003c\/p\u003e","brand":"HangX","offers":[{"title":"Default Title","offer_id":56918013804930,"sku":"HX37","price":599.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/7711\/0146\/files\/Hx-37.jpg?v=1789746283","url":"https:\/\/www.probuild-uk.co.uk\/products\/hang-x-hx-37-37cc-2-stroke-petrol-engine","provider":"Probuild Aircraft Ltd","version":"1.0","type":"link"}